Non-perturbative O(a) improvement of the SU(3) sextet model
arXiv:1701.03391
Abstract
We calculate non-perturbatively the coefficient c_sw required for O(a) improvement of the SU(3) gauge theory with Nf = 2 fermions in the two-index symmetric (sextet) representation. For the calculations we impose the standard improvement condition in the Schrödinger functional framework, using two different discretisations for the gauge field i.e. the Wilson plaquette action and the tree-level improved Symanzik (Lüscher-Weisz) action.
14 pages, 4 figures, 4 tables